Frequently Asked Questions
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Search for answers about solar, batteries, rebates, EV charging and more.
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Is it worth it? Bills, savings and payback
How solar and batteries can reduce your bills and whether it stacks up for your home.
How solar, batteries and the grid work
How power is generated, stored, exported and billed.
Sizing and designing a system
How much solar and battery storage you actually need.
Your roof: orientation, tilt and shading
How your roof setup affects solar performance.
Installation quality and racking
What a good, compliant solar install should look like.
Blackouts and backup power
What happens in a blackout and how backup power works.
Weather, climate and the coast
How heat, hail, cold and salt air can affect your system.
Rebates, incentives and finance
Available rebates, incentives, loans and finance options.
Electricity plans, tariffs and free daytime power
How electricity plans and tariffs affect solar owners.
EVs and solar charging
How to charge an EV using your own solar.
Choosing a battery: brands, warranties and expansion
How to compare batteries, warranties and future upgrades.
Renters, landlords, apartments and strata
Solar options when you don’t fully own the roof.
Business, clubs and commercial
Solar, batteries and incentives for commercial properties.
Living with your system
Monitoring, connectivity and support after installation.
New builds and NatHERS
Solar and energy requirements for new homes and renovations.
Featured & recently updated
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Microinverters vs DC Optimisers: Which is Right For You
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What Size Solar System Do I Need?
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Subcontractors vs In-house Solar Installers
Search results
Is it worth it? Bills, savings and payback
How much can a solar and battery system reduce my electricity bill?
Is it worth it? Bills, savings and payback
Can a solar and battery system really reduce my power bill to zero?
Is it worth it? Bills, savings and payback
Is a home battery worth the investment?
Is it worth it? Bills, savings and payback
Why is my solar bill still high if I have panels?
Is it worth it? Bills, savings and payback
Is now a good time to install solar, or should I wait?
Is it worth it? Bills, savings and payback
How do I avoid getting ripped off when buying solar?
Sizing and designing a system
What size solar and battery system do you need to charge an EV?
Sizing and designing a system
What size battery do I need to power my home during a blackout?
Sizing and designing a system
Do I need new solar panels to add a battery?
Sizing and designing a system
How long does it take to install a home solar and battery system?
Your roof: orientation, tilt and shading
Does my roof have to face north for solar to be worth it?
Your roof: orientation, tilt and shading
Does the direction my solar panels face matter more in southern Australia?
Your roof: orientation, tilt and shading
What tilt angle should my solar panels be at in Australia?
Your roof: orientation, tilt and shading
Can I put solar panels on multiple roof faces?
Your roof: orientation, tilt and shading
What is an east-west split and when does it make sense?
Your roof: orientation, tilt and shading
What is a ground-mounted solar system and when does it make sense?
Your roof: orientation, tilt and shading
Does shade mean solar isn’t worth it for my home?
Your roof: orientation, tilt and shading
How much can shading reduce my solar system’s output?
Your roof: orientation, tilt and shading
Why does shade on one panel affect the whole system?
Your roof: orientation, tilt and shading
What is a bypass diode and what happens when it fails?
Your roof: orientation, tilt and shading
What is the difference between hard shading and diffuse shading?
Your roof: orientation, tilt and shading
What are power optimisers and how do they help with shading?
Your roof: orientation, tilt and shading
Are microinverters better than power optimisers for shading?
Your roof: orientation, tilt and shading
How do I know if shading will be a problem for my roof?
Your roof: orientation, tilt and shading
Can I do anything about shading after my system is already installed?
Installation quality and racking
How long does solar racking last on an Australian roof?
Installation quality and racking
What solar mounting system is best for ColorBond roofs?
Installation quality and racking
Does solar racking affect my roof warranty?
Installation quality and racking
How do I know if my solar racking is installed correctly?
Installation quality and racking
What does it mean if my installation is classified as substandard?
Installation quality and racking
What is Solar Accreditation Australia and why does it matter?
Installation quality and racking
What should I receive at handover after a battery installation?
Installation quality and racking
Can a substandard installation affect my home insurance or battery warranty?
Blackouts and backup power
Why does my solar system turn off during a blackout if the sun is still shining?
Blackouts and backup power
Can a solar battery protect my home from blackouts?
Blackouts and backup power
Can I add a battery to my existing solar system to get blackout protection?
Blackouts and backup power
Does a battery power my whole home during a blackout, or only part of it?
Blackouts and backup power
Does a solar battery work during a blackout when it’s cloudy?
Blackouts and backup power
Is now a good time to add a battery for blackout protection?
Weather, climate and the coast
How does cold weather affect solar battery performance?
Weather, climate and the coast
What temperature is too cold for a solar battery?
Weather, climate and the coast
Can the SigenStor solar battery operate in freezing temperatures?
Weather, climate and the coast
Will my solar panels survive a hailstorm?
Weather, climate and the coast
Can hail damage solar panels without cracking the glass?
Weather, climate and the coast
Is now a good time to upgrade to hail-resistant panels?
Weather, climate and the coast
Does my home insurance cover hail damage to solar panels?
Weather, climate and the coast
How far from the coast does salt air become a problem for solar?
Weather, climate and the coast
Does salt air damage the battery cells themselves?
Weather, climate and the coast
Does living near the coast affect how long my solar system will last?
Weather, climate and the coast
What is IEC 61701 and why does it matter?
Weather, climate and the coast
What IP rating should a battery have for coastal installation?
Weather, climate and the coast
Can I install a Sigenergy SigenStor near the coast?
Weather, climate and the coast
Are there solar batteries with no coastal warranty exclusions?
Weather, climate and the coast
How often do coastal solar panels need to be cleaned?
Rebates, incentives and finance
How does the solar battery rebate work?
Rebates, incentives and finance
Has the solar battery rebate ended?
Rebates, incentives and finance
Will the rebate keep declining?
Rebates, incentives and finance
What battery size makes the most sense under the new rebate structure?
Rebates, incentives and finance
Does the battery need to be connected to a VPP to be eligible for the federal rebate?
Rebates, incentives and finance
Do I need to apply for the solar or battery rebate myself?
Rebates, incentives and finance
What is the PDRS and how does it affect solar battery rebates?
Rebates, incentives and finance
Am I eligible for a PDRS rebate on a new home battery?
Rebates, incentives and finance
How much can I save with the updated PDRS incentives?
Rebates, incentives and finance
Who is eligible for the NSW $15,000 interest-free solar loan?
Rebates, incentives and finance
How do I apply for the NSW Home Energy Saver loan?
Rebates, incentives and finance
Can I use the Home Energy Saver loan for both solar panels and a battery?
Rebates, incentives and finance
Do apartment buildings qualify for a battery incentive now?
Rebates, incentives and finance
Can small or medium businesses get a battery incentive?
Rebates, incentives and finance
Is solar still covered under the ACT Sustainable Household Scheme?
Rebates, incentives and finance
Solar panels are no longer covered by the ACT loan. What are my options?
Rebates, incentives and finance
What is the maximum loan under the ACT Sustainable Household Scheme?
Rebates, incentives and finance
What is the interest rate on the ACT Sustainable Household Scheme loan?
Rebates, incentives and finance
Does the ACT Sustainable Household Scheme cover EV chargers in 2026?
Rebates, incentives and finance
Are electric cargo bikes covered under the ACT Sustainable Household Scheme?
Rebates, incentives and finance
How do I find a qualified installer for ACT rebate programs?
Rebates, incentives and finance
What is the ACT Home Energy Support Program?
Rebates, incentives and finance
Is there a solar rebate specifically for ACT residents?
Rebates, incentives and finance
How much can I save on a battery in the ACT?
Rebates, incentives and finance
What’s the property value limit for the Sustainable Household Scheme?
Rebates, incentives and finance
Can I combine the federal rebate with the ACT Sustainable Household Scheme?
Rebates, incentives and finance
Can I claim both the federal rebate and a NSW state incentive?
Electricity plans, tariffs and free daytime power
What is the Solar Sharer Offer and how does it work?
Electricity plans, tariffs and free daytime power
Am I eligible for the free daytime electricity offer with AGL, Origin or EnergyAustralia?
Electricity plans, tariffs and free daytime power
Which appliances should I run during my free energy hours?
Electricity plans, tariffs and free daytime power
What happens when I go over the 24 kWh daily cap?
Electricity plans, tariffs and free daytime power
Will the free daytime electricity window be the same every day?
Electricity plans, tariffs and free daytime power
Do I need a battery to use the Solar Sharer Offer?
Electricity plans, tariffs and free daytime power
Can I save even more by combining the offer with a home battery?
Electricity plans, tariffs and free daytime power
Will the Solar Sharer offer actually save me money?
Electricity plans, tariffs and free daytime power
Is now a good time to invest in solar and batteries given the Solar Sharer Offer?
Electricity plans, tariffs and free daytime power
What is the best electricity retailer for a home with solar and a battery?
Electricity plans, tariffs and free daytime power
What electricity plan is best if I have no solar and low power usage?
Electricity plans, tariffs and free daytime power
How do I compare electricity retailers on my bill?
Electricity plans, tariffs and free daytime power
How do ACT feed-in tariffs compare to other states?
Electricity plans, tariffs and free daytime power
Is it worth joining a Virtual Power Plant with my home battery?
Electricity plans, tariffs and free daytime power
Is the AEMC tariff reform actually a solar tax?
EVs and solar charging
Can solar panels really power an electric vehicle?
EVs and solar charging
How much can you save on EV charging costs with a home solar system?
EVs and solar charging
Does the BYD Shark still use petrol if I charge it with solar?
EVs and solar charging
Can I charge a BYD Shark with solar if I already have a 6.6 kW system?
EVs and solar charging
Will daily solar charging wear out the battery faster?
Choosing a battery: brands, warranties and expansion
Can you add modular batteries to a Tesla Powerwall system?
Choosing a battery: brands, warranties and expansion
I have a Powerwall 2. Can I add more storage?
Choosing a battery: brands, warranties and expansion
Does the Expansion Pack increase power?
Choosing a battery: brands, warranties and expansion
Is it better to add an Expansion Pack or another Powerwall 3?
Choosing a battery: brands, warranties and expansion
Are modular batteries better for three-phase homes?
Choosing a battery: brands, warranties and expansion
What is the Tesla Powerwall 3 warranty?
Choosing a battery: brands, warranties and expansion
Does Powerwall 3 have a throughput limit?
Choosing a battery: brands, warranties and expansion
Is a 15-year battery warranty better?
Choosing a battery: brands, warranties and expansion
Will joining a VPP void the warranty?
Choosing a battery: brands, warranties and expansion
How long does the Tesla Powerwall 3 last?
Choosing a battery: brands, warranties and expansion
How can I protect against degradation?
Renters, landlords, apartments and strata
How does the Solar Sharer Offer work for renters?
Renters, landlords, apartments and strata
What are the alternatives to plug-in solar for renters in Australia?
Renters, landlords, apartments and strata
Can a landlord claim the federal solar tax credit on a rental property?
Renters, landlords, apartments and strata
Who pays for solar panels in a rental property, the landlord or tenant?
Renters, landlords, apartments and strata
Do solar panels increase the value of a rental property?
Renters, landlords, apartments and strata
Will tenants pay more rent for a solar-equipped rental?
Renters, landlords, apartments and strata
Is plug-in solar legal in Australia?
Renters, landlords, apartments and strata
Why can’t I buy a plug-in solar system in Australia?
Renters, landlords, apartments and strata
Does my strata building actually own the roof?
Renters, landlords, apartments and strata
Can I install solar just for my own unit?
Renters, landlords, apartments and strata
How many owners need to agree before solar can go ahead?
Renters, landlords, apartments and strata
Do we need a by-law to install solar in a strata building?
Renters, landlords, apartments and strata
How much does strata solar typically cost?
Renters, landlords, apartments and strata
Is the SoAR grant still available in 2026?
Renters, landlords, apartments and strata
Will solar reduce my strata levies?
Renters, landlords, apartments and strata
What happens to the solar savings if I rent out my unit?
Business, clubs and commercial
What size businesses is SigenStack suitable for?
Business, clubs and commercial
Is SigenStack better than traditional commercial battery systems?
Business, clubs and commercial
Can SigenStack be added to an existing solar system?
Business, clubs and commercial
What happens if our club misses Round 1?
Business, clubs and commercial
Is now a good time for our club to act on energy grants?
Business, clubs and commercial
Can a small community club with limited admin capacity still apply for these grants?
Business, clubs and commercial
Our club leases its grounds from the council. Can we still apply?
Living with your system
Why did my Sigenergy SigenStor disconnect from Wi-Fi?
Living with your system
How do I reset the Wi-Fi settings on my SigenStor?
Living with your system
What should I do if my SigenStor won’t reconnect to Wi-Fi after following the steps?
New builds and NatHERS
What is a NatHERS rating and why do I need one?
New builds and NatHERS
How many stars do you need to pass a NatHERS assessment?
New builds and NatHERS
How much does a NatHERS assessment cost in Australia?
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